Home / 7,772.85-11,662.73-4,074.20

Finding the Fourth Proportional to 7,772.85, 11,662.73 and 4,074.20

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Solution

The fourth proportional to 7,772.85, 11,662.73 and 4,074.20 is: 6,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.85 : 11,662.73 = 4,074.20 : x
  2. Step 2: Convert to fraction form
    7,772.85/11,662.73 = 4,074.20/x
  3. Step 3: Cross multiply
    7,772.85x = 11,662.73 × 4,074.20
  4. Step 4: Simplify right side
    7,772.85x = 47,516,274.20
  5. Step 5: Solve for x
    x = 47,516,274.20/7,772.85
  6. Step 6: Final answer
    x = 6,113.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.